I figured this comment carried enough satire to not need explanation. He was using an offensive tone to carry over the implicated apathy that city planning has on the impoverished.

I think based on the rest of the context that was kind of the point - to drive home the "screw these people" attitude that policies like this would spring from.

Is that the only thing you found offensive about that comment?

Poe's law appears to be in effect here.